blob: 912835a15c6bcc2bb2dd469d749670bf21b2ac74 [file] [log] [blame]
/*
* Copyright (c) 2019-2020, Xilinx, Inc. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/*
* Versal system level PM-API functions and communication with PMC via
* IPI interrupts
*/
#include <pm_common.h>
#include <pm_ipi.h>
#include <plat/common/platform.h>
#include "pm_api_sys.h"
#include "pm_client.h"
#include "pm_defs.h"
#include "pm_svc_main.h"
#include "../drivers/arm/gic/v3/gicv3_private.h"
/*********************************************************************
* Target module IDs macros
********************************************************************/
#define LIBPM_MODULE_ID 0x2
#define LOADER_MODULE_ID 0x7
#define MODE 0x80000000
/* default shutdown/reboot scope is system(2) */
static unsigned int pm_shutdown_scope = XPM_SHUTDOWN_SUBTYPE_RST_SYSTEM;
/**
* pm_get_shutdown_scope() - Get the currently set shutdown scope
*
* @return Shutdown scope value
*/
unsigned int pm_get_shutdown_scope(void)
{
return pm_shutdown_scope;
}
/**
* Assigning of argument values into array elements.
*/
#define PM_PACK_PAYLOAD1(pl, mid, flag, arg0) { \
pl[0] = (uint32_t)((uint32_t)((arg0) & 0xFF) | (mid << 8) | ((flag) << 24)); \
}
#define PM_PACK_PAYLOAD2(pl, mid, flag, arg0, arg1) { \
pl[1] = (uint32_t)(arg1); \
PM_PACK_PAYLOAD1(pl, mid, flag, arg0); \
}
#define PM_PACK_PAYLOAD3(pl, mid, flag, arg0, arg1, arg2) { \
pl[2] = (uint32_t)(arg2); \
PM_PACK_PAYLOAD2(pl, mid, flag, arg0, arg1); \
}
#define PM_PACK_PAYLOAD4(pl, mid, flag, arg0, arg1, arg2, arg3) { \
pl[3] = (uint32_t)(arg3); \
PM_PACK_PAYLOAD3(pl, mid, flag, arg0, arg1, arg2); \
}
#define PM_PACK_PAYLOAD5(pl, mid, flag, arg0, arg1, arg2, arg3, arg4) { \
pl[4] = (uint32_t)(arg4); \
PM_PACK_PAYLOAD4(pl, mid, flag, arg0, arg1, arg2, arg3); \
}
#define PM_PACK_PAYLOAD6(pl, mid, flag, arg0, arg1, arg2, arg3, arg4, arg5) { \
pl[5] = (uint32_t)(arg5); \
PM_PACK_PAYLOAD5(pl, mid, flag, arg0, arg1, arg2, arg3, arg4); \
}
/* PM API functions */
/**
* pm_get_api_version() - Get version number of PMC PM firmware
* @version Returns 32-bit version number of PMC Power Management Firmware
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_get_api_version(unsigned int *version, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD1(payload, LIBPM_MODULE_ID, flag, PM_GET_API_VERSION);
return pm_ipi_send_sync(primary_proc, payload, version, 1);
}
/**
* pm_init_finalize() - Call to notify PMC PM firmware that master has power
* management enabled and that it has finished its
* initialization
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Status returned by the PMU firmware
*/
enum pm_ret_status pm_init_finalize(uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMU */
PM_PACK_PAYLOAD1(payload, LIBPM_MODULE_ID, flag, PM_INIT_FINALIZE);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_self_suspend() - PM call for processor to suspend itself
* @nid Node id of the processor or subsystem
* @latency Requested maximum wakeup latency (not supported)
* @state Requested state
* @address Resume address
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* This is a blocking call, it will return only once PMU has responded.
* On a wakeup, resume address will be automatically set by PMU.
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_self_suspend(uint32_t nid,
unsigned int latency,
unsigned int state,
uintptr_t address, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
unsigned int cpuid = plat_my_core_pos();
const struct pm_proc *proc = pm_get_proc(cpuid);
if (!proc) {
WARN("Failed to get proc %d\n", cpuid);
return PM_RET_ERROR_INTERNAL;
}
/*
* Do client specific suspend operations
* (e.g. set powerdown request bit)
*/
pm_client_suspend(proc, state);
/* Send request to the PLM */
PM_PACK_PAYLOAD6(payload, LIBPM_MODULE_ID, flag, PM_SELF_SUSPEND,
proc->node_id, latency, state, address,
(address >> 32));
return pm_ipi_send_sync(proc, payload, NULL, 0);
}
/**
* pm_abort_suspend() - PM call to announce that a prior suspend request
* is to be aborted.
* @reason Reason for the abort
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* Calling PU expects the PMU to abort the initiated suspend procedure.
* This is a non-blocking call without any acknowledge.
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_abort_suspend(enum pm_abort_reason reason, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/*
* Do client specific abort suspend operations
* (e.g. enable interrupts and clear powerdown request bit)
*/
pm_client_abort_suspend();
/* Send request to the PLM */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag, PM_ABORT_SUSPEND,
reason, primary_proc->node_id);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_req_suspend() - PM call to request for another PU or subsystem to
* be suspended gracefully.
* @target Node id of the targeted PU or subsystem
* @ack Flag to specify whether acknowledge is requested
* @latency Requested wakeup latency (not supported)
* @state Requested state (not supported)
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_req_suspend(uint32_t target, uint8_t ack,
unsigned int latency, unsigned int state,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMU */
PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, flag, PM_REQ_SUSPEND, target,
latency, state);
if (ack == IPI_BLOCKING)
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
else
return pm_ipi_send(primary_proc, payload);
}
/**
* pm_req_wakeup() - PM call for processor to wake up selected processor
* or subsystem
* @target Device ID of the processor or subsystem to wake up
* @set_address Resume address presence indicator
* 1 - resume address specified, 0 - otherwise
* @address Resume address
* @ack Flag to specify whether acknowledge requested
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* This API function is either used to power up another APU core for SMP
* (by PSCI) or to power up an entirely different PU or subsystem, such
* as RPU0, RPU, or PL_CORE_xx. Resume address for the target PU will be
* automatically set by PMC.
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_req_wakeup(uint32_t target, uint32_t set_address,
uintptr_t address, uint8_t ack, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC to perform the wake of the PU */
PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, flag, PM_REQ_WAKEUP, target,
set_address, address, ack);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_request_device() - Request a device
* @device_id Device ID
* @capabilities Requested capabilities for the device
* @qos Required Quality of Service
* @ack Flag to specify whether acknowledge requested
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_request_device(uint32_t device_id, uint32_t capabilities,
uint32_t qos, uint32_t ack, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, flag, PM_REQUEST_DEVICE,
device_id, capabilities, qos, ack);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_release_device() - Release a device
* @device_id Device ID
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_release_device(uint32_t device_id, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_RELEASE_DEVICE,
device_id);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_set_requirement() - Set requirement for the device
* @device_id Device ID
* @capabilities Requested capabilities for the device
* @latency Requested maximum latency
* @qos Required Quality of Service
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_set_requirement(uint32_t device_id, uint32_t capabilities,
uint32_t latency, uint32_t qos,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, flag, PM_SET_REQUIREMENT,
device_id, capabilities, latency, qos);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_get_device_status() - Get device's status
* @device_id Device ID
* @response Buffer to store device status response
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_get_device_status(uint32_t device_id, uint32_t *response,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_GET_DEVICE_STATUS,
device_id);
return pm_ipi_send_sync(primary_proc, payload, response, 3);
}
/**
* pm_reset_assert() - Assert/De-assert reset
* @reset Reset ID
* @assert Assert (1) or de-assert (0)
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_reset_assert(uint32_t reset, bool assert, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag, PM_RESET_ASSERT, reset,
assert);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_reset_get_status() - Get current status of a reset line
* @reset Reset ID
* @status Returns current status of selected reset ID
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_reset_get_status(uint32_t reset, uint32_t *status,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_RESET_ASSERT,
reset);
return pm_ipi_send_sync(primary_proc, payload, status, 1);
}
/**
* pm_get_callbackdata() - Read from IPI response buffer
* @data - array of PAYLOAD_ARG_CNT elements
* @flag - 0 - Call from secure source
* 1 - Call from non-secure source
*
* Read value from ipi buffer response buffer.
*/
void pm_get_callbackdata(uint32_t *data, size_t count, uint32_t flag)
{
/* Return if interrupt is not from PMU */
if (!pm_ipi_irq_status(primary_proc))
return;
pm_ipi_buff_read_callb(data, count);
pm_ipi_irq_clear(primary_proc);
}
/**
* pm_pinctrl_request() - Request a pin
* @pin Pin ID
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_pinctrl_request(uint32_t pin, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_PINCTRL_REQUEST,
pin);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_pinctrl_release() - Release a pin
* @pin Pin ID
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_pinctrl_release(uint32_t pin, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_PINCTRL_RELEASE,
pin);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_pinctrl_set_function() - Set pin function
* @pin Pin ID
* @function Function ID
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_pinctrl_set_function(uint32_t pin, uint32_t function,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag,
PM_PINCTRL_SET_FUNCTION, pin, function)
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_pinctrl_get_function() - Get function set on the pin
* @pin Pin ID
* @function Function set on the pin
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_pinctrl_get_function(uint32_t pin, uint32_t *function,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag,
PM_PINCTRL_SET_FUNCTION, pin);
return pm_ipi_send_sync(primary_proc, payload, function, 1);
}
/**
* pm_pinctrl_set_pin_param() - Set configuration parameter for the pin
* @pin Pin ID
* @param Parameter ID
* @value Parameter value
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_pinctrl_set_pin_param(uint32_t pin, uint32_t param,
uint32_t value, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, flag,
PM_PINCTRL_CONFIG_PARAM_SET, pin, param, value);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_pinctrl_get_pin_param() - Get configuration parameter value for the pin
* @pin Pin ID
* @param Parameter ID
* @value Buffer to store parameter value
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_pinctrl_get_pin_param(uint32_t pin, uint32_t param,
uint32_t *value, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag,
PM_PINCTRL_CONFIG_PARAM_GET, pin, param);
return pm_ipi_send_sync(primary_proc, payload, value, 1);
}
/**
* pm_clock_enable() - Enable the clock
* @clk_id Clock ID
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_clock_enable(uint32_t clk_id, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_CLOCK_ENABLE,
clk_id);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_clock_disable() - Disable the clock
* @clk_id Clock ID
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_clock_disable(uint32_t clk_id, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_CLOCK_DISABLE,
clk_id);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_clock_get_state() - Get clock status
* @clk_id Clock ID
* @state: Buffer to store clock status (1: Enabled, 0:Disabled)
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_clock_get_state(uint32_t clk_id, uint32_t *state,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_CLOCK_GETSTATE,
clk_id);
return pm_ipi_send_sync(primary_proc, payload, state, 1);
}
/**
* pm_clock_set_divider() - Set divider for the clock
* @clk_id Clock ID
* @divider Divider value
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_clock_set_divider(uint32_t clk_id, uint32_t divider,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag, PM_CLOCK_SETDIVIDER,
clk_id, divider);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_clock_get_divider() - Get divider value for the clock
* @clk_id Clock ID
* @divider: Buffer to store clock divider value
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_clock_get_divider(uint32_t clk_id, uint32_t *divider,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_CLOCK_GETDIVIDER,
clk_id);
return pm_ipi_send_sync(primary_proc, payload, divider, 1);
}
/**
* pm_clock_set_parent() - Set parent for the clock
* @clk_id Clock ID
* @parent Parent ID
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_clock_set_parent(uint32_t clk_id, uint32_t parent,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag, PM_CLOCK_SETPARENT,
clk_id, parent);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_clock_get_parent() - Get parent value for the clock
* @clk_id Clock ID
* @parent: Buffer to store clock parent value
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_clock_get_parent(uint32_t clk_id, uint32_t *parent,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_CLOCK_GETPARENT,
clk_id);
return pm_ipi_send_sync(primary_proc, payload, parent, 1);
}
/**
* pm_clock_get_rate() - Get the rate value for the clock
* @clk_id Clock ID
* @rate: Buffer to store clock rate value
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_clock_get_rate(uint32_t clk_id, uint32_t *clk_rate,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_CLOCK_GETRATE,
clk_id);
return pm_ipi_send_sync(primary_proc, payload, clk_rate, 2);
}
/**
* pm_pll_set_param() - Set PLL parameter
* @clk_id PLL clock ID
* @param PLL parameter ID
* @value Value to set for PLL parameter
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_pll_set_param(uint32_t clk_id, uint32_t param,
uint32_t value, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, flag, PM_PLL_SET_PARAMETER,
clk_id, param, value);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_pll_get_param() - Get PLL parameter value
* @clk_id PLL clock ID
* @param PLL parameter ID
* @value: Buffer to store PLL parameter value
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_pll_get_param(uint32_t clk_id, uint32_t param,
uint32_t *value, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag, PM_PLL_GET_PARAMETER,
clk_id, param);
return pm_ipi_send_sync(primary_proc, payload, value, 1);
}
/**
* pm_pll_set_mode() - Set PLL mode
* @clk_id PLL clock ID
* @mode PLL mode
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_pll_set_mode(uint32_t clk_id, uint32_t mode,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag, PM_PLL_SET_MODE,
clk_id, mode);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_pll_get_mode() - Get PLL mode
* @clk_id PLL clock ID
* @mode: Buffer to store PLL mode
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_pll_get_mode(uint32_t clk_id, uint32_t *mode,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag, PM_PLL_GET_MODE,
clk_id);
return pm_ipi_send_sync(primary_proc, payload, mode, 1);
}
/**
* pm_force_powerdown() - PM call to request for another PU or subsystem to
* be powered down forcefully
* @target Device ID of the PU node to be forced powered down.
* @ack Flag to specify whether acknowledge is requested
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_force_powerdown(uint32_t target, uint8_t ack,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag, PM_FORCE_POWERDOWN,
target, ack);
if (ack == IPI_BLOCKING)
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
else
return pm_ipi_send(primary_proc, payload);
}
/**
* pm_system_shutdown() - PM call to request a system shutdown or restart
* @type Shutdown or restart? 0=shutdown, 1=restart, 2=setscope
* @subtype Scope: 0=APU-subsystem, 1=PS, 2=system
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_system_shutdown(uint32_t type, uint32_t subtype,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
if (type == XPM_SHUTDOWN_TYPE_SETSCOPE_ONLY) {
/* Setting scope for subsequent PSCI reboot or shutdown */
pm_shutdown_scope = subtype;
return PM_RET_SUCCESS;
}
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag, PM_SYSTEM_SHUTDOWN,
type, subtype);
return pm_ipi_send_non_blocking(primary_proc, payload);
}
/**
* pm_query_data() - PM API for querying firmware data
* @qid The type of data to query
* @arg1 Argument 1 to requested query data call
* @arg2 Argument 2 to requested query data call
* @arg3 Argument 3 to requested query data call
* @data Returned output data
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* This function returns requested data.
*/
enum pm_ret_status pm_query_data(uint32_t qid, uint32_t arg1, uint32_t arg2,
uint32_t arg3, uint32_t *data, uint32_t flag)
{
uint32_t ret;
uint32_t version;
uint32_t payload[PAYLOAD_ARG_CNT];
uint32_t fw_api_version;
/* Send request to the PMC */
PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, flag, PM_QUERY_DATA, qid,
arg1, arg2, arg3);
ret = pm_feature_check(PM_QUERY_DATA, &version, flag);
if (PM_RET_SUCCESS == ret) {
fw_api_version = version & 0xFFFF ;
if ((2U == fw_api_version) &&
((XPM_QID_CLOCK_GET_NAME == qid) ||
(XPM_QID_PINCTRL_GET_FUNCTION_NAME == qid))) {
ret = pm_ipi_send_sync(primary_proc, payload, data, 8);
ret = data[0];
data[0] = data[1];
data[1] = data[2];
data[2] = data[3];
} else {
ret = pm_ipi_send_sync(primary_proc, payload, data, 4);
}
}
return ret;
}
/**
* pm_api_ioctl() - PM IOCTL API for device control and configs
* @device_id Device ID
* @ioctl_id ID of the requested IOCTL
* @arg1 Argument 1 to requested IOCTL call
* @arg2 Argument 2 to requested IOCTL call
* @value Returned output value
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* This function calls IOCTL to firmware for device control and configuration.
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_api_ioctl(uint32_t device_id, uint32_t ioctl_id,
uint32_t arg1, uint32_t arg2, uint32_t *value,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
int ret;
switch (ioctl_id) {
case IOCTL_SET_PLL_FRAC_MODE:
return pm_pll_set_mode(arg1, arg2, flag);
case IOCTL_GET_PLL_FRAC_MODE:
return pm_pll_get_mode(arg1, value, flag);
case IOCTL_SET_PLL_FRAC_DATA:
return pm_pll_set_param(arg1, PM_PLL_PARAM_DATA, arg2, flag);
case IOCTL_GET_PLL_FRAC_DATA:
return pm_pll_get_param(arg1, PM_PLL_PARAM_DATA, value, flag);
case IOCTL_SET_SGI:
/* Get the sgi number */
ret = pm_register_sgi(arg1);
if (ret) {
return PM_RET_ERROR_ARGS;
}
gicd_write_irouter(gicv3_driver_data->gicd_base,
PLAT_VERSAL_IPI_IRQ, MODE);
return PM_RET_SUCCESS;
default:
/* Send request to the PMC */
PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, flag, PM_IOCTL,
device_id, ioctl_id, arg1, arg2);
return pm_ipi_send_sync(primary_proc, payload, value, 1);
}
}
/**
* pm_set_wakeup_source() - PM call to specify the wakeup source while suspended
* @target Device id of the targeted PU or subsystem
* @wkup_node Device id of the wakeup peripheral
* @enable Enable or disable the specified peripheral as wake source
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_set_wakeup_source(uint32_t target, uint32_t wkup_device,
uint8_t enable, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
PM_PACK_PAYLOAD4(payload, LIBPM_MODULE_ID, flag, PM_SET_WAKEUP_SOURCE,
target, wkup_device, enable);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_get_chipid() - Read silicon ID registers
* @value Buffer for return values. Must be large enough
* to hold 8 bytes.
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns silicon ID registers
*/
enum pm_ret_status pm_get_chipid(uint32_t *value, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD1(payload, LIBPM_MODULE_ID, flag, PM_GET_CHIPID);
return pm_ipi_send_sync(primary_proc, payload, value, 2);
}
/**
* pm_feature_check() - Returns the supported API version if supported
* @api_id API ID to check
* @value Returned supported API version
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_feature_check(uint32_t api_id, unsigned int *version,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT], fw_api_version;
uint32_t status;
switch (api_id) {
case PM_GET_CALLBACK_DATA:
case PM_GET_TRUSTZONE_VERSION:
case PM_LOAD_PDI:
*version = (PM_API_BASE_VERSION << 16);
return PM_RET_SUCCESS;
case PM_GET_API_VERSION:
case PM_GET_DEVICE_STATUS:
case PM_GET_OP_CHARACTERISTIC:
case PM_REQ_SUSPEND:
case PM_SELF_SUSPEND:
case PM_FORCE_POWERDOWN:
case PM_ABORT_SUSPEND:
case PM_REQ_WAKEUP:
case PM_SET_WAKEUP_SOURCE:
case PM_SYSTEM_SHUTDOWN:
case PM_REQUEST_DEVICE:
case PM_RELEASE_DEVICE:
case PM_SET_REQUIREMENT:
case PM_RESET_ASSERT:
case PM_RESET_GET_STATUS:
case PM_GET_CHIPID:
case PM_PINCTRL_REQUEST:
case PM_PINCTRL_RELEASE:
case PM_PINCTRL_GET_FUNCTION:
case PM_PINCTRL_SET_FUNCTION:
case PM_PINCTRL_CONFIG_PARAM_GET:
case PM_PINCTRL_CONFIG_PARAM_SET:
case PM_IOCTL:
case PM_CLOCK_ENABLE:
case PM_CLOCK_DISABLE:
case PM_CLOCK_GETSTATE:
case PM_CLOCK_SETDIVIDER:
case PM_CLOCK_GETDIVIDER:
case PM_CLOCK_SETPARENT:
case PM_CLOCK_GETPARENT:
case PM_CLOCK_GETRATE:
case PM_PLL_SET_PARAMETER:
case PM_PLL_GET_PARAMETER:
case PM_PLL_SET_MODE:
case PM_PLL_GET_MODE:
case PM_FEATURE_CHECK:
case PM_INIT_FINALIZE:
case PM_SET_MAX_LATENCY:
case PM_REGISTER_NOTIFIER:
*version = (PM_API_BASE_VERSION << 16);
break;
case PM_QUERY_DATA:
*version = (PM_API_QUERY_DATA_VERSION << 16);
break;
default:
*version = 0U;
return PM_RET_ERROR_NOFEATURE;
}
PM_PACK_PAYLOAD2(payload, LIBPM_MODULE_ID, flag,
PM_FEATURE_CHECK, api_id);
status = pm_ipi_send_sync(primary_proc, payload, &fw_api_version, 1);
if (status != PM_RET_SUCCESS)
return status;
*version |= fw_api_version;
return PM_RET_SUCCESS;
}
/**
* pm_load_pdi() - Load the PDI
*
* This function provides support to load PDI from linux
*
* src: Source device of pdi(DDR, OCM, SD etc)
* address_low: lower 32-bit Linear memory space address
* address_high: higher 32-bit Linear memory space address
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_load_pdi(uint32_t src, uint32_t address_low,
uint32_t address_high, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMU */
PM_PACK_PAYLOAD4(payload, LOADER_MODULE_ID, flag, PM_LOAD_PDI, src,
address_high, address_low);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_get_op_characteristic() - PM call to request operating characteristics
* of a device
* @device_id Device id
* @type Type of the operating characteristic
* (power, temperature and latency)
* @result Returns the operating characteristic for the requested device,
* specified by the type
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_get_op_characteristic(uint32_t device_id,
enum pm_opchar_type type,
uint32_t *result, uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag,
PM_GET_OP_CHARACTERISTIC, device_id, type);
return pm_ipi_send_sync(primary_proc, payload, result, 1);
}
/**
* pm_set_max_latency() - PM call to change in the maximum wake-up latency
* requirements for a specific device currently
* used by that CPU.
* @device_id Device ID
* @latency Latency value
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_set_max_latency(uint32_t device_id, uint32_t latency,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD3(payload, LIBPM_MODULE_ID, flag, PM_SET_MAX_LATENCY,
device_id, latency);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* pm_register_notifier() - PM call to register a subsystem to be notified
* about the device event
* @device_id Device ID for the Node to which the event is related
* @event Event in question
* @wake Wake subsystem upon capturing the event if value 1
* @enable Enable the registration for value 1, disable for value 0
* @flag 0 - Call from secure source
* 1 - Call from non-secure source
*
* @return Returns status, either success or error+reason
*/
enum pm_ret_status pm_register_notifier(uint32_t device_id, uint32_t event,
uint32_t wake, uint32_t enable,
uint32_t flag)
{
uint32_t payload[PAYLOAD_ARG_CNT];
/* Send request to the PMC */
PM_PACK_PAYLOAD5(payload, LIBPM_MODULE_ID, flag, PM_REGISTER_NOTIFIER,
device_id, event, wake, enable);
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}